(touch-me-not is a kind of ...) any vine of the family Cucurbitaceae that bears fruits with hard rinds

(... is a member of touch-me-not) exploding cucumber; squirting cucumber

Definition 3: prostrate or semi-erect subshrub of tropical America, and Australia; heavily armed with recurved thorns and having sensitive soft grey-green leaflets that fold and droop at night or when touched or cooled - [noun denoting plant]